CVE-2026-89963

CVE-2026-89963 affects the Linux kernel in the powerpc/kexec_file subsystem. A potential NULL pointer dereference exists in the function kexec_extra_fdt_size_ppc64() : on platforms without any reserved memory regions, get_reserved_memory_ranges() can return 0 while leaving the pointer 'rmem' unal...

EUVD-2026-80563

In the Linux kernel, the following vulnerability has been resolved: powerpc/kexecfile: Fix null-ptr-def in extra size calculation A static Sashiko AI review identified a potential NULL pointer dereference in kexecextrafdtsizeppc64. On platforms without any reserved memory regions,...

CVE-2026-89962

CVE-2026-89962 affects the Linux kernel 's powerpc/kexec_file subsystem. The __merge_memory_ranges() function contains two logic flaws: it compares the current range's start address against the previous element (i-1) instead of the running merged index (idx), and it unconditionally overwrites ran...

EUVD-2026-80562

In the Linux kernel, the following vulnerability has been resolved: powerpc/kexecfile: Prevent kexec range truncation Sashiko AI review pointed out the following issue. The mergememoryranges function incorrectly handles overlapping memory ranges when merging them. Although sortmemoryranges sorts...